[{
	"id":1,
	"code":"01",
	"name":"name1",
	"addr":"address1",
	"col4":"col4 data",
	"iconCls":"icon-ok",
	"children":[{
		"id":2,
		"code":"0101",
		"name":"name11",
		"addr":"address11",
		"checked":true
	},{
		"id":3,
		"code":"0102",
		"name":"name12",
		"addr":"address12",
		"state":"closed"
	}]
},{
	"code":"02",
	"name":"Languages abc",
	"addr":"address2",
	"col4":"col4 data",
	"state":"closed",
	"children":[{
		"code":"0201",
		"name":"Java",
		"col4":"col4 data",
		"state":"closed",
		"children":[{
			"code":"02013",
			"name":"jdk1"
		},{
			"code":"02014",
			"name":"jdk2"
		}]
	},{
		"code":"0202",
		"name":"C#",
		"col4":"col4 data"
	}]
}]